公开(公告)号：US5933267A

公开(公告)日：1999-08-03

申请号：US34989

申请日：1998-03-05

申请人： Yutaka Ishizuka

发明人： Yutaka Ishizuka

IPC分类号： F16C17/10 ,  G02B26/12 ,  H04N1/113 ,  G02B26/08

CPC分类号： G02B26/121

摘要： In a rotary polygon mirror type light deflector 1, since a ring-shaped polygon mirror 8 is mounted on the periphery of a bearing rotor 3, there exists a clearance between the bearing rotor 3 and polygon mirror 8. Even in this structure, if the leading end portion 110 of a fixing screw 11 is contacted with a wedge-shaped positioning member 12A within a groove 35 when the fixing screw 11 is threadedly engaged into the screw hole 35, then the positioning member 12A is allowed to push out the polygon mirror 8 toward the outer peripheral side thereof by an amount equivalent to the above-mentioned clearance, thereby being able to position and fix the polygon mirror 8 in the radial direction.

摘要翻译： 在旋转多面镜型光偏转器1中，由于在轴承转子3的周围安装有环状的多面镜8，所以在轴承转子3和多面镜8之间存在间隙。即使在该结构中， 当固定螺钉11螺纹接合到螺钉孔35中时，固定螺钉11的前端部分110与凹槽35内的楔形定位构件12A接触，然后使定位构件12A推出多面镜 8朝向其外周侧的量相当于上述间隙的量，从而能够使多面镜8沿径向定位和固定。

公开(公告)号：US5744881A

公开(公告)日：1998-04-28

申请号：US544030

申请日：1995-10-17

申请人： Yutaka Ishizuka ,  Koichi Katakura

发明人： Yutaka Ishizuka ,  Koichi Katakura

IPC分类号： G11B19/20 ,  H02K1/27 ,  H02K15/03 ,  H02K7/00

CPC分类号： H02K1/2786 ,  G11B19/2009 ,  H02K15/03

摘要： A drive magnet unit is fixedly mounted on the inner cylindrical surface of the cylindrical portion of a rotor yoke which is fixedly mounted on a hub, in such a manner that the drive magnet unit confronts a stator core. The rotor yoke has an annular portion along its open end. The rotor yoke has a curved portion along the open end which forms a gap with the outer cylindrical surface of the drive magnet unit. The annular portion is sheared along its base, thus forming a shear plane. The inner surface of the bottom of the rotor yoke, and the inner cylindrical surface of the cylindrical portion of the rotor yoke form a right-angled portion with which the right-angled outer edge portion of the drive magnet unit is engaged. The peripheral surface of the right-angled portion defines a through-hole in the bottom which is engaged with the hub. The gap is filled with adhesive, to fixedly secure the drive magnet unit to the rotor yoke.

摘要翻译： 驱动磁体单元固定地安装在固定地安装在轮毂上的转子轭的圆柱形部分的内圆柱表面上，使得驱动磁体单元面对定子芯。 转子轭具有沿其开口端的环形部分。 转子轭具有沿着开口端的弯曲部分，其与驱动磁体单元的外圆柱形表面形成间隙。 环形部分沿其基部剪切，从而形成剪切平面。 转子轭的底部的内表面和转子轭的圆柱形部分的内圆柱形表面形成与驱动磁体单元的直角外缘部接合的直角部分。 直角部分的周边表面在底部限定了与轮毂接合的通孔。 间隙填充有粘合剂，以将驱动磁体单元牢固地固定到转子轭。

公开(公告)号：US5675430A

公开(公告)日：1997-10-07

申请号：US543934

申请日：1995-10-17

申请人： Yutaka Ishizuka ,  Shinji Ohta

发明人： Yutaka Ishizuka ,  Shinji Ohta

IPC分类号： B22F1/00 ,  C22C1/04 ,  G02B5/09 ,  G02B26/08 ,  G02B7/182

CPC分类号： G02B5/09 ,  B22F1/0003 ,  C22C1/0416 ,  Y10S359/90

摘要： A blank is formed of a sintered alloy by sintering a mixture of powdered materials including powdered aluminum, and at least one of powdered silicon, powdered magnesium, and powdered chromium. This blank, being made of the sintered body, can be molded into a shape close to the final shape of a rotary polygon mirror. For example, a mirror surface can be molded into a desired shape in advance. Therefore, the final product of the rotary polygon mirror can be obtained with ease by subjecting the blank to a simple finishing process by cutting.

摘要翻译： 通过烧结包括粉末状铝的粉末材料和粉末状硅，粉末状镁和粉末状铬中的至少一种的粉末材料的混合物，由烧结合金形成坯料。 由烧结体制成的坯料可以模制成接近旋转多面镜的最终形状的形状。 例如，镜面可以预先模制成所需的形状。 因此，通过切割对坯料进行简单的精加工，可以容易地获得旋转多面镜的最终产品。

公开(公告)号：US5492229A

公开(公告)日：1996-02-20

申请号：US151386

申请日：1993-11-12

申请人： Takashi Tanaka ,  Jun Yoshikawa ,  Eiichi Toya ,  Atsuo Kitazawa ,  Kazunori Meguro ,  Tatsuo Nozawa ,  Yutaka Ishizuka ,  Yoshiyuki Watanabe ,  Masaru Seino ,  Hideo Nakanishi

发明人： Takashi Tanaka ,  Jun Yoshikawa ,  Eiichi Toya ,  Atsuo Kitazawa ,  Kazunori Meguro ,  Tatsuo Nozawa ,  Yutaka Ishizuka ,  Yoshiyuki Watanabe ,  Masaru Seino ,  Hideo Nakanishi

IPC分类号： C30B31/14 ,  H01L21/673 ,  A47F7/00

CPC分类号： H01L21/67309 ,  C30B31/14

摘要： A vertical boat for holding a plurality of semiconductor wafers comprising two end members (2) positioned at the top and the bottom of the vertical boat, and a plurality of support members (3,4,5,6,104) vertically mounted on the end members (2) for supporting the wafers, wherein each support member (3,4,5,6,104) is formed by a plate-like member having a series of slits (9,10,7,8,108) formed thereon in such a manner that a plurality of support arms are defined by the slits (9,10,7,8,108) at a predetermined interval, each support arm having a support projection (11,12,13,14,112) formed at the end thereof, and wherein the inner portions (P) of the wafer (1) is to be supported by the support projections (11,12,13,14,112) whereas the periphery of the wafer (1) does not contact the arms of the support members (3,4,5,6,104). The slits can be formed in two steps: forming a series of first slit portions on the plate-like member at a predetermined interval so as to retain two side walls of the plate-like member; and forming a series of second small slit portions on one of the side walls at the same interval so as to connect each second slit portion to the corresponding first slit portion.

摘要翻译： 一种用于保持多个半导体晶片的垂直船，包括位于垂直船的顶部和底部的两个端部构件（2）和垂直安装在端部构件上的多个支撑构件（3,4,5,6,104） （2），用于支撑晶片，其中每个支撑构件（3,4,5,6,104）由其上形成有一系列狭缝（9,10,7,8,108）的板状构件形成，其方式使得 多个支撑臂由狭缝（9,10,7,8,108）以预定的间隔限定，每个支撑臂具有在其端部形成的支撑突起（11,12,13,14,112），并且其中内部 晶片（1）的部分（P）将由支撑突起（11,12,13,14,112）支撑，而晶片（1）的周边不与支撑部件（3,4）的臂接触， 5,6,104）。 狭缝可以分成两个步骤：以预定间隔在板状构件上形成一系列第一狭缝部分，以便保持板状构件的两个侧壁; 并且在一个侧壁上以相同的间隔形成一系列第二小狭缝部分，以将每个第二狭缝部分连接到相应的第一狭缝部分。

公开(公告)号：US4668172A

公开(公告)日：1987-05-26

申请号：US783834

申请日：1985-10-03

申请人： Tsunenori Shibuya ,  Yutaka Ishizuka

发明人： Tsunenori Shibuya ,  Yutaka Ishizuka

IPC分类号： F04C29/12 ,  F04C18/344 ,  F04C29/00 ,  F16K15/16

CPC分类号： F04C29/128 ,  Y10T137/784 ,  Y10T137/7892

摘要： A cylinder has at least one valve seating surface-forming portion which has an outer surface formed therein with at least one recess, the bottom surface of which serves as a valve seating surface. A discharge valve is arranged on the valve seating surface-forming portion to close or open outlet holes each formed in corresponding ones of the valve seating surface. The discharge valve has at least one valve body formed of an elastic plate member disposed in close contact with a corresponding one of the valve seating surface. Preferably, the valve seating surface is arcuately concavely curved and the corresponding valve body has a correspondingly curved surface. The outlet holes are each formed in a thinnest portion of the valve seating surface-forming portion.

摘要翻译： 气缸具有至少一个阀座表面形成部分，其具有在其中形成有至少一个凹部的外表面，其底表面用作阀座表面。 排气阀设置在阀座表面形成部分上，以封闭或打开各自形成在相应的阀座表面中的出口孔。 排出阀具有至少一个阀体，该阀体由与阀座面相应的一个紧密接触地设置的弹性板构件形成。 优选地，阀座表面弧形地凹入弯曲，并且相应的阀体具有相应的曲面。 出口孔各自形成在阀座表面形成部分的最薄部分中。

公开(公告)号：US4611977A

公开(公告)日：1986-09-16

申请号：US640312

申请日：1984-08-13

申请人： Tsunenori Shibuya ,  Yutaka Ishizuka ,  Haruhiko Takada ,  Teruo Nakamura ,  Hidehiko Takayama

发明人： Tsunenori Shibuya ,  Yutaka Ishizuka ,  Haruhiko Takada ,  Teruo Nakamura ,  Hidehiko Takayama

IPC分类号： F04C18/344 ,  F01C21/08 ,  F04C18/00

CPC分类号： F01C21/0872

摘要： A vane compressor has a vane back pressure adjustment device including back-pressure chambers defined in a vane-supporting rotor and surrounded by vanes and side blocks secured to axial ends of a cylinder. The back-pressure chamber has axial ends disposed to follow a path against each of the side blocks when the rotor rotates. The path is divided into at least one high-pressure zone in which the vanes move across a pump outlet defined in the cylinder, and at least one normal-pressure zone which is the remainder of the path. In the normal-pressure zone, oil grooves defined in surfaces of the side blocks which face the rotor and supplied with oil from an oil sump in the vane compressor are in communication with the back-pressure chambers, to thereby maintain the oil pressure in the back-pressure chambers at a pressure level in the oil sump. In the high-pressure zone, the back-pressure chambers are out of communication with the oil grooves so that the oil fed into the back-pressure chambers is confined therein, except through a restrictor means. When the vanes move across the pump outlet, the vanes enter the high-pressure zone to trap oil in the back-pressure chambers to thereby elevate the oil pressure in the back-pressure chambers to a high level. Therefore, the vanes are prevented from being retracted deeply into vane slits in the rotor and then popping out into hitting engagement with the cylinder.

公开(公告)号：US4244680A

公开(公告)日：1981-01-13

申请号：US59165

申请日：1979-07-20

申请人： Yutaka Ishizuka ,  Shinichi Kobayashi

发明人： Yutaka Ishizuka ,  Shinichi Kobayashi

IPC分类号： F04B39/16 ,  B01D46/10 ,  F04B39/04 ,  F04C29/02 ,  B01D50/00

CPC分类号： F04C29/026 ,  B01D46/10 ,  Y10S418/01

摘要： An improved vane compressor including a novel lubricating oil separator disposed within a discharge pressure chamber formed between the casing and the pump housing. The oil separator comprises a pair of fluid-traversable upper and lower plates disposed within the discharge pressure chamber, an oil separating element interposed between said upper and lower plates, which preferably has a reticulate or spongy structure having pores communicating with each other, and a hollow cylindrical guide element fitted in the casing in a fashion covering the inner peripheral wall of the discharge pressure chamber but a lower part thereof, said guide element having a depression formed in a peripheral surface thereof and defining a passage for guiding a gaseous medium toward the compressor outlet, whereby oil separation takes place at multiple places, resulting in high rate of oil separation.

摘要翻译： 一种改进的叶片式压缩机，其包括设置在形成在壳体和泵壳体之间的排出压力室内的新型润滑油分离器。 油分离器包括设置在排出压力室内的一对流体可移动的上下板，插入在所述上板和下板之间的油分离元件，其优选地具有彼此连通的孔的网状或海绵状结构， 中空圆柱引导元件以覆盖排出压力室的内周壁但其下部的方式安装在壳体中，所述引导元件具有形成在其外周表面中的凹部，并且限定用于将气态介质引导向 压缩机出口，从而在多个地方进行油分离，导致高油分离速率。

公开(公告)号：US5653541A

公开(公告)日：1997-08-05

申请号：US518489

申请日：1995-08-15

申请人： Yutaka Ishizuka ,  Shinji Kinoshita

发明人： Yutaka Ishizuka ,  Shinji Kinoshita

IPC分类号： F16C33/76 ,  F16C33/80 ,  F16C33/82 ,  F16C35/04 ,  G11B19/20

CPC分类号： G11B19/2009 ,  F16C33/76 ,  F16C33/80 ,  F16C35/04 ,  F16C2370/12

摘要： A magnetic disk driving device includes a frame which supports a shaft, a hub adapted to hold a disk, and upper and lower bearings which are fitted in a bearing holding hole and rotatably support the hub. The frame includes a cylindrical protrusion which is confronted through a small gap d with the outer cylindrical surface of the outer race of the lower bearing. The small gap d forms a labyrinth in the space through which the inside of the lower bearing is communicated with the outside. The inner cylindrical surface of an annular protrusion formed on the bottom of the hub, and the inner cylindrical surface of the cylindrical protrusion are substantially equal in diameter.

摘要翻译： 磁盘驱动装置包括支撑轴的框架，适于保持盘的轮毂，以及装配在轴承保持孔中并可旋转地支撑轮毂的上下轴承。 框架包括圆筒形突起，其通过小间隙d与下轴承的外座圈的外圆柱形表面相对。 小间隙d在下部轴承的内部与外部连通的空间中形成迷宫。 形成在毂的底部上的环形突起的内圆柱表面和圆柱形突起的内圆柱形表面的直径基本上相等。

公开(公告)号：US5636084A

公开(公告)日：1997-06-03

申请号：US552171

申请日：1995-11-02

申请人： Yutaka Ishizuka

发明人： Yutaka Ishizuka

IPC分类号： H02K5/173 ,  G11B19/20 ,  H02K7/08 ,  H02K29/00 ,  G11B17/028

CPC分类号： G11B19/2009 ,  H02K5/1737 ,  H02K7/086

摘要： A magnetic disc drive motor contains a frame; a fixed shaft mounted on the frame; a ball bearing for rotatably supporting a magnetic disc by fitting an inner center hole of the magnetic disc on an outer ring of the ball bearing, an inner ring of the magnetic disc being secured to the fixed shaft; a rotor fixed to one end of the ball bearing, the rotor having a loading surface defined on an upper surface thereof; and a motor member including: a rotor member mounted in an inside of the rotor; and a stator member secured on the frame, wherein the inner peripheral portion of the magnetic disc fitted on the outer ring of the ball bearing is mounted on the loading surface of the rotor.

摘要翻译： 磁盘驱动电动机包含框架; 安装在框架上的固定轴; 用于通过将所述磁盘的内部中心孔装配在所述球轴承的外圈上来可旋转地支撑磁盘的球轴承，所述磁盘的内环固定到所述固定轴; 固定在所述滚珠轴承的一端的转子，所述转子具有限定在所述滚珠轴承的上表面上的载荷面; 以及电动机构件，包括：转子构件，其安装在所述转子的内部; 以及固定在框架上的定子构件，其中安装在滚珠轴承的外圈上的磁盘的内周部分安装在转子的装载表面上。

公开(公告)号：US5507873A

公开(公告)日：1996-04-16

申请号：US465607

申请日：1995-06-05

申请人： Yutaka Ishizuka ,  Yoshiyuki Watanabe ,  Tatsuo Nozawa ,  Shinzi Sawanobori ,  Tomio Kon

发明人： Yutaka Ishizuka ,  Yoshiyuki Watanabe ,  Tatsuo Nozawa ,  Shinzi Sawanobori ,  Tomio Kon

IPC分类号： B65D85/00 ,  B65D85/86 ,  H01L21/22 ,  H01L21/31 ,  H01L21/673 ,  B05C13/02

CPC分类号： H01L21/67309

摘要： A vertical boat for holding a plurality of semiconductor wafers comprising two end members (5) positioned at the top and the bottom of the vertical boat, and a plurality of support members (3,4) vertically mounted on the end members (5), the support members (3,4) including two front support members (3) located on the wafer inserting side and at least one rear support members (4) located on the rear side of the boat, each support member (3,4) having a series of slits (3a,4a) formed thereon at a predetermined interval and a series of support portions defined by the slits (3a,4a) for supporting semiconductor wafers (1), wherein the front support member (3) is generally formed by a circular arc plate, and wherein each angle (A,B) formed between the wafer inserting direction (X) and a line linking the front end (3b) of the support portion of the front support member (3) to the center (1a) of the wafer (1) is 100 degrees or more.

摘要翻译： 一种用于保持多个半导体晶片的垂直船，包括位于垂直船的顶部和底部的两个端部构件（5）和垂直安装在端部构件（5）上的多个支撑构件（3,4） 支撑构件（3,4）包括位于晶片插入侧的两个前支撑构件（3）和位于船的后侧上的至少一个后支撑构件（4），每个支撑构件（3,4）具有 以一定间隔形成的一系列狭缝（3a，4a）和由用于支撑半导体晶片（1）的狭缝（3a，4a）限定的一系列支撑部分，其中前支撑构件（3）通常由 圆弧板，并且其中形成在所述晶片插入方向（X）和将所述前支撑构件（3）的支撑部分的前端（3b）连接到所述中心（1a）的线之间的每个角度（A，B） ）为100度以上。